HomeMy WebLinkAboutOWTS Site DesignN
SCALE: 1 = 50'=O"
DRAWINGS MUST BE USED IN
CONJUNCTION WITH DESIGN
LETTER DATED 02/10/2026
CDO — CBO Inc.
129 Cains Lane
'4 — Carbondale, Colorado 81623
tL
-A Phone 970.309.5259
carla.ostberg@gmail.com
SITE PLAN -a
Passchier Residence
422 Rose Lane
Garfield County, Colorado
Project Number: C2017
HOWN ARE
NOT THE RESULT OF A PROPERTY SURVEY. I HE LOCATIONS
ARE APPROXI ATE, IT 15 THE HOMEOWNERS` DUN TO
ENSURE ALL C NSTRUCTION AND IMPROVEMENT LOCATIONS
ARE ACCURAT . PROPERTY LINES AND SETBACK DISTANCES
SHOULD BE C NFIRMED PRIOR TO EXCAVATION. SCALED
FOR PRINTING ON 11" X 17" PAPER.
Date: 02/10/2026
Designed by: CBO
Reviewed by: KC
Drawn by: DD
W1.0
Sheet 1 OF 4
LAWN
Y
J
Q
10' SIDE SETBACK PER RU
5-BEDROOM
RESIDENCE
II
BM 100' = FF MAIN
RESIDENCE
6171.5'
_ TIE INTO SEWER -
LINE WITH "WYE"
FITTING
CONCRETE APRON
4" IRON
Ifs. a ' TO OPEN PORTION OF DITC
PIPE ^ N
1" IRON BA
FOUND BEAR
5'00"WW ,.____0.36
WOO ING ER P �LESWEEPIA' TTH DO C T
MIN 2% FALL TO TANK
2000-GALLON, THREE -COMPARTMENT SEPTIC TANK WITH AN j
ORENCO PUMP PACKAGE IN THE 11
THIRD COMPARTMENT (TOTAL VOLUME 2500-GALLONS)
RISERS AND LIDS TO GRADE. — SCALE: 1" = 20'-0"
Y
FA
I /
4" DIA SDR-35 SEWEt�`PIPE WITH
DRIVEWAY DOUBLE SSWCLEANOUT REC. N0. 037�
MIN 2°/fly TO TANK
i
i PRO SED DWTS y �_
CBO Inc.
129 Cains Lane
Carbondale, Colorado 81623
Phone 970.309.5259
carla.ostberg@gmail.com
1.5" DIA SCH-40 1
PUMP LINE.
(MIN 1 % DRAIN
BACK TO TANK)
l
O O
0
i
i
/ ADV MODEL 6404
/ AT HIGH POINT,
/ ACCESSIBLE AT 1 4
/ GRADE \
TZ
\�NI�
Passchier Residence
422 Rose Lane
Garfield County, Colorado
Project Number: C2017
INSPECTION PORT AT
CORNER OF EACH BED
(2) 12' x 47' PRESSURE DOSED, MOUNDED,
UNLINED SAND FILTERS (MIN. 3' ASTM C-33
CONCRETE SAND) WITH FOUR 39" WIDE GEOMAT SHEETS
EACH BED
(4) 1.5" DIA SCH-40 PVC LATERALS
W/ 32" DIA ORIFICES FACING DOWN
COVERED WITH ORIFICE SHIELDS
i I
I 1.5" DIA SCH-40 PVC DISTRIBUTION LINES
1.5" DIA SCH-40 LEVEL MANIFOLD
N. 10' TO DITCH
�—PROPERTY LINE
f FLUSHING VALVE AT
END OF EACH LATERAL
ITCH
J NOTE: DITCH MUST
BE IN COVERT
\—FENCE
z (TYP.)
I� w
II 3LL
CALL 811 FOR UTILITY
LOCATES
Date: 02/10/2026
Designed by: CBO W2' 0
Reviewed by: KC Sheet 2 OF 4
Drawn by: DID
BASAL AREA OF MOUND MUST EXTEND I
FOR A MINIMUM 3:1 SLOPE.
END EACH LATER, L IN A 90' LONG I
SWEEPING ELL F�CING UP WITH A
BALL VALVE IN A ALVE BOX 0—
ACCESSIBLE AT GRADE
1.5" DIA SCH-40 PVC LATERALS —
WITH 5/32" DIA ORIFICES FACING
DOWN, 3' O.C., ON GEOMAT
1' I `TOPSOIL
3'
2.5'
— INSPECTION PORT AT EACH
CORNER OF BED
&i
w
D-
O
J
�(2) 12' x 47' PRESSURE DOSED, MOUI DED, UNLINED
SAND FILTERS (MIN. 3' ASTM C-33 CONCRETE SAND)
UNDER FOUR 39" WIDE GEOMAT �HEETS. FOUR 1.5"
DIA SCH-40 PVC LATERALS WITH 132" DIA ORIFICES
(WITH ORIFICE SHIELD) FACING DPWN, T O.C.
"
1
1'
i0o
1.5" DIA SCH-40 LEVEL MANIFOLD J1 i
i
1
(MI DIA DRAIN PUMP LINE
(MIN 1 % DRAINBACK TO TANK)
f;1 MOUNDED SAND FI PLAN
EPARATION FABRIC
RIFICE SHEILDS
EOMAT
INSPECTION PORT AT EACH
CORNER
�,�a' '� � .' ;..:•�.�:,:;^�,' .•SAND FILTER' �s:.��:.r.::: v ;A; :Y�.:�ti,�'�.
.1 ,'+,� `•i+_ �..., `', .,`': .'fit}. •,'j •�,' �.1^� �',1•
APPROX.1
—APPROX.12' — --- ---- —�-- ---
SAND FILTER MATERIAL
"SECONDARY SAND"
EFFECTIVE SIZE = 0.15 - 0.06 mm 2 M0QNDM SAND FILTER SECTION
UNIFORMITY COEFFICIENT <7.0
% FINES PASSING #200 SIEVE <3.0
( 11 to CBO Inc.
129 Cains Lane
Carbondale, Colorado 81623
Phone 970.309.5259
carla.ostberg@gmail.com
—'' ro&TRlc—
GRADE
SCRAPE VEGETATION
TO FOR PLACEMENT
OF SAND FILTER
MATERIAL NO MORE
THAN V BELOW GRADE
Passchier Residence
422 Rose Lane
Garfield County, Colorado
Project Number: C2017
zp-- INSTALL FLUSHING
VALVE ECCENTRIC TO
CENTER OF VALVE BOX
FLUSHING VALVE DETAIL
0
10" DIA VALVE BOX
WITH SECURED LID
1.5" PVC SLIP X MALE
PIPE THREAD
ADAPTER W/CAP
1.5" DIA BALL
VALVE
GEOMAT
1.5" DIA SCH-40 PVC
LATERAL
02/10/2026
esigned by: CBO
eviewed by: KC
raven by: DID
W3.0
Sheet 3 OF 4
DESIGN
PROPOSED 5-BEDROOM RESIDENCE + 2-BEDROOM ADU
MAIN HOUSE: 75 GPD x 2 PERSONS/BEDROOM x 3 BEDROOMS +
150 GPD (4th AND 5th BEDROOMS = 600 GPD
ADU: 75 GPD x 2 PERSONS/BEDROOM x 2 BEDROOMS = 300 GPD
WASTEWATER FLOW = 600 GPD + 300 GPD = 900 GPD
USE 2000 GALLON, THREE -COMPARTMENT SEPTIC TANK WITH
PUMPING SYSTEM IN THIRD COMPARTMENT (TOTAL 2500-GALLONS)
SOIL TREATMENT AREA (STA):
LONG TERM ACCEPTANCE RATE (LTAR) = 0.8 GAL/ SF
CALCULATED STA = Q/LTAR = 900 / 0.8 = 1125 SF
(2) 12' X 47' PRESSURE -DOSED, MOUNDED, SAND FILTERS WITH A
MINIMUM O F 3' OF SAND FILTER MATERIAL UNDER GEOMAT
SLIP-ON PVC A
t
DO NOT GLUE
INSULATED C(
TRACER WIRE
4" DIA SDR-35
SEWER LINE
DE
TO TANK TO HOUSE
1 CLEAN QU T DETAIL
r:oi ra �C1iF
SLIP-ON PVC CAP
DO NOT GLUE
4" DIA SDR-35—
INSPECTION PIPE
STA FI L T E
MEDIA
SPRINKLER VALVE
BOX AT GRADE
FINISHED GRADE
1/4" DIA HOLE DRILLED
INTO TWO SIDES OF PIPE
FOR VENTILATION
(BELOW SLIP ON CAP)
2 INSPECTION PART DETAIL
rror ro srsee
OWTS COMPONENTS AND
PHYSICAL FEATURES
MINIMUM REQUIRED
SETBACK
APPROXIMATE PROPOSED
SETBACK
HOUSE TO SEPTIC TANK
5'
12'
SEPTIC TANK TO WELL
50'
279'
SEPTIC TANK TO DITCH
10' IN CULVERT
57'
STA TO HOUSE
20'
60'
STA TO WELL
100'
323'
STA TO WATER DITCH
10' IN CULVERT
15'
FINISHED GRADE
FinishedGrade
24
BACKFILL Q0
17"' Distribution Pipe
DIA SDR-35
(MIN 2% SLOPE TO TANK)
eoGuard Orifice Shielial
Hygroscopic M• Native• • •
SCREENED -•Transmissive C Specified Fil
OR SAND FOR IN,
BEDDING
_� 3�Y :�• '•-r a%j sy�s��� Y �'fr• r 1.�is� I � i
— " PMI N. J
'f�i ��.�'. •sae'r..-ti•���lwlti.._.rr.���r'i.� A8�1.�.�,
Hygroscop'Ic Memrane
DETAILTRENCH
NUT IU GEOMAT SECTION
\L1 N07 TO SCALE
(A1O -.
5 _
�r.•••e•rc• e-s.��f+i r TIC[
CBO Inc.
129 Cains Lane
Carbondale, Colorado 81623
Phone 970.309.5259
carla.ostberg@gmail.com
Passchier Residence
422 Rose Lane
Garfield County, Colorado
Project Number: C2017
r1 SETBACK CHART
V NOT r0
30" DIAMETER PVC
RISER (INSULATED
12"
MIN
FROM EFFLUENT
PUMPING SYSTEM
AUTOMATIC
DISTRIBUTING
VALVE ASSEMBLY
1.5" DIA SCH-40
PVC INLET AND
OUTLETS
5 AUTOMATIC DISTRIBUTING VALVE DETAIL
r+oro cr,ir
Date: 02/10/2026
Designed by: CBO W4.0
Reviewed by: KC
Drawn by: DID Sheet 4 OF 4